Lead-packer



(No Model.)

C. E. DAWSON.

LEAD PAGKBR.

No. 494,979` Patented Apr. 4, 189.3.

INVENTOH E m Y@ ATTUHAIEYS.

UNITED STATES PATENT FricE.

CLARENCE E. DAVSON, OF JOPLIN, MISSOURI.

LEAD-PACKER.

SPECIFICATION forming part of Letters Patent No. 494,979, dated April 4,1893.

Application tiled April 6,1892. Serial No. 428,004. (No model.)

To all whom 1123 may concern:

Be it known that l, CLARENCE E. DAWSON, of Joplin, in the county ofJasper and State of Missouri, have invented a new and lmprovedLead-Packer, ot which the following is a full, clear, and exactdescription.

My invention relates to improvements in a packing machine adapted topack white lead or similar paint into a barrel. Much of the lead of thischaracter which is packed in barrels is condensed from the fumes andsmoke of a lead smelter, and as a result, the lead is mingled with largequantities of air and is very volatile. It is therefore extremelydifticult to pack the lead into barrels. lt is usually packed by hand,as it is necessary to provide for the escape of air while it is beingpacked, but the practice is slow and is also fatal to the workmen, whocan stand the work but a little while.

The objects of niyinvention are to reduce the expense of packing, andalso avoid the necessity of hand packing, this result being accomplishedby producing a machine which will pack the lead solidly into a barrel,will deliver it in quantities desired, and will permit the rapid escapeof the air.

To this end my invention consists in certain features of constructionand combinations of parts, which will be hereinafter described andclaimed.

Reference is to be had to the accompanying drawings forming a part ofthis specification, in `which similar figures of reference indicatecorresponding parts in all the views.

Figure 1 is a broken vertical section showing the application of themachine to a ban rel. Fig. 2 is a sectional plan of the packer proper,on the line 2-2 in Fig. l; and Fig. 3 is an inverted plan of the packerproper.

In connection with the invention, a cylinder l0 is used, the cylinderbeing open at its ends, and being of a size to tit quite snugly in thebarrel 1]. The cylinder has at its lower end a flexible diaphragm orpacking 12, which is preferably made of fabric, and which hangs downinto the barrel. This diaphragm permits the air to escape upward aroundit, but it obstructs the upward course of the lead or paint and causesthe same to be held down in the barrel. A plunger 13, is held toreciprocate vertically in the cylinder lO, and fits snugly within thecylinder, the plunger having numerous perforations l-l through it topermit the air to escape when it isforced down. The plunger hasa-central aperture therein through which the lead is fed, and in thisaperture is secured the hollow pipe 15, which serves as a piston rod,and whichV is adapted to connect with the blast-pipe supplying the lead.

On the under side of the plunger is secured a circular frame comprisingthe exterior ring 16, adapted to tit against the outer portion of theplunger, the interior ring 17 adaptedvto lit around the centralaperture, and the ribs 1S connecting the two rings. Portions of the ribs18 are prolonged so as to project beyond the ring 1G, and these enterstaples 19, which are secured to the plunger and which thus hold theframe against the plunger. The circular frame is intended to bind thecloth 2O in place against the bottom of the plunger. The cloth 20 isthick enough to prevent the paint from being forced upward through it,but itrpermits the air to passthrough and escape by way oftheperforations 14.

Near the lower end of the pipe 15,is asliding valve 2l,which is held tomove in a suitable slide-way, and which is normally pressed into aclosed position by a spring 22oue end of which presses against the valveand the other end of which is secured to the outer portion of the pipe.The stem of the valve 2l is pivotally connected with the slotted lowerend of the lower arm 23 of a bell crank lever 24:, which lever ispivoted to lugs 25 on the pipe 15, and is held to swing vertically, andthe upper arm 26 of the bell crank is pivoted to a rod 27, which extendsupward through the cylinder 10, and may be secured to any support. lnpractice, any means may be used for reciprocating the pipe l5 and theplunger 13, and the lead mingled with air is supplied to the pipe by anyordinary method.

The operation of the packer is as follows: The cylinder l0 is insertedin the barrel, the lead supplied tothe pipe l5, and the pipe and plunger13 are worked up and-down within the cylinder. Atl every up stroke therod 27 is pulled so as to tilt the bell crank 24, and open the valve 2l,thus letting in a supply of paint to the lower portion of the barrel,and at every down stroke of the plunger the IOO or paint will be heldbeneath. The cylindery and plunger are gradually raised and theoperation repeated until the barrel is full.

By this method the lead may be packed more solidly than by hand, and itis not necessary for a person to be near enough to inhale any escapingfumes. The fumes are all forced back into the blast pipe and canse noflying dust or paint.

Having thus described my invention, I claim as new and desire to secureby Letters Patentf 1. In alead packer the foraminated or opeu- Workcompressing-plum ger to enter the barrel to be packed, and a vertical,valved feed pipe connected therewith to supply the material to beypacked below the plunger and to reciprocate the plunger, substantiallyas set forth.

2. A lead packer, comprising a perforated plunger adaptedr to fit withina barrel, a hollow pistonrod connected with the plunger and adapted toserve as a feed pipe, and a springpressed valve arranged in the pistonrod, substantially as described.

3. In a lead packer, the foralnin ated oropenwork compressing plunger toenter the barrel to be packed, an air-pervious covering for said plungerto permit theescape of aironly through the plunger in'its downward orcompressive movement, and avalved feed pipe connected with the plungerto supply the materialto be packed therebelow, substantially as setforth.

4. A lead packer, comprising a perforated plunger, a feed pipe connectedcentrally therewith and serving as a piston rod, a cut-'off valve in thefeed pipe, asheet of fabric held to cover the perforations in theplunger, and a clamping frame adapted to bind the fabric to the plunger,substantially as described.

5. The combination of the perforated plunger, the hollow piston rod, theslide'valve arranged in the piston rod, the bell crank pivotedy on thepiston rod and connected with the valve, and the rod pivoted to the bellcrank and extending upward therefrom, substantially as described.

6. A lead packing apparatus, comprising atube to enter the barrel andprovided around its lower end withy a flexible diaphragm,fa foraminatedor open-work compressing plunger workingin the tube and having an airpervious fabric cover, a feed pipe connected with the plunger to feedthe lead therebelow and to reciprocate the plunger, and a valve in thelower end of said pipe and provided with means for operating it fromabove the said tube, substantially as set forth.

CLARENCE E. DAVSON.

Witnesses: Y,

WILLIAM D. SALLEE, f WILLIAM F. GRIFFITH.

